Home Model Engine Machinist > Building Them > Team Builds > Team Build - I'll try a different approach.....
Reply
 
Thread Tools Display Modes
Old 02-10-2010, 06:28 PM   #1
charlesfitton
 
charlesfitton's Avatar
 
Join Date: Jan 2010
Posts: 79
Liked 5 Times on 5 Posts
Likes Given: 81

Default Team Build - I'll try a different approach.....

I need direction as to the perfect engine to fill this requirement....

In two days , Myself and another tech teacher are going to try to start a club at the secondary school where we teach.

I have total access to the machine shop.
9 lathes
4 v mills
1 horiz mill.

Adequate tooling, and what isn't covered by budget I can purloin, I'll pay for.

We have several reasons for this club...

We're interested,
We want the kids interested in the hobby and the trade, and
We want to foster interest in the machine shop as many of these are being gutted by the school boards (you can do it all on line instead...)

So we have the option to build engines ( the first sets anyway ) on an assembly line basis. For the rest of this school year the shop isn't scheduled for anything that will interfere with the setups.

We're planning a half hour a few days a week before school. if we can get (and keep) the kids interested.

We'll sneak in the shop skills like measurement, filing, set-up, and layout as we go along, And after a few set projects we will let the advanced ones select their own projects.

Can the collective wisdom reccommend a design which we can use for this project?

Many Thanks.


















__________________

just getting older - not more mature

charlesfitton is offline  
 
Reply With Quote Quick reply to this message
Old 02-10-2010, 06:36 PM   #2
rleete
 
Join Date: Dec 2008
Posts: 586
Liked 35 Times on 35 Posts
Likes Given: 21

Default Re: Team Build - I'll try a different approach.....

Go with the newbie engine developed by the members here.

http://www.homemodelenginemachinist.com/index.php?topic=6259.0



__________________

Easily distracted by shiny things

rleete is offline  
 
Reply With Quote Quick reply to this message
Old 02-10-2010, 06:46 PM   #3
stevehuckss396
Senior Member
 
stevehuckss396's Avatar
 
Join Date: Nov 2008
Location: Sterling Heights, MI
Posts: 3,246
Liked 436 Times on 312 Posts
Likes Given: 4

Default Re: Team Build - I'll try a different approach.....

Take a look at the HOSC engine in the file section. It has less than 10 parts and if you come even close to the drawing, it will run.

I have drawn the plans for a 2X size and it has been built and run. 2 inch flywheel, base is about 3 inch square. Decent size for the beginner. I can send the plans.

Attached Thumbnails
DSCN1559Tiny.JPG  
__________________
stevehuckss396 is offline  
 
Reply With Quote Quick reply to this message
Old 02-11-2010, 01:06 AM   #4
Deanofid
 
Join Date: Jul 2009
Location: Idaho, USA
Posts: 2,673
Liked 151 Times on 148 Posts
Likes Given: 5

Default Re: Team Build - I'll try a different approach.....

Hi Charles;

That's a good thing you're working on here, getting young people involved in real stuff before they are all convinced they just have to push a button to get something done.

The project that Rleete linked to was done up with first timers in mind. Most everything on it can be cut as a basic shape from stock materials, only needing a small amount of machining to finish up the stock.

Check out Steve's suggestion too, and be sure to look through the downloads section. Look at the left column on the forum page, select "Menu", and then click on "Downloads and uploads".

You might also check a search engine for "bar stock wobbler" or "bar stock oscillator". A very simple engine type that lends itself to fairly quick construction, and they run well without needing NASA type tolerances.

Best of luck!

Dean

__________________
Deanofid is offline  
 
Reply With Quote Quick reply to this message
Old 02-11-2010, 01:11 AM   #5
rake60
HMEM_LIFETIMESUPPORTER.png
 
rake60's Avatar
 
Join Date: Jul 2007
Posts: 4,765
Liked 208 Times on 186 Posts

Default Re: Team Build - I'll try a different approach.....

Since you have more lathes available than other machines, I have been
looking for a design that involves more turning than milling.

I'll keep searching my archives here.

Rick

__________________

Seriously, how many times can THAT happen in one day?

rake60 is offline  
 
Reply With Quote Quick reply to this message
Old 02-11-2010, 01:25 AM   #6
capjak
 
Join Date: Jul 2009
Posts: 95
Liked 8 Times on 8 Posts

Default Re: Team Build - I'll try a different approach.....

The River Queen Open Column Launch Engine has more lathe work than mill work. It could be jazzed up by beading the columns. It is small enough that the material costs could be kept low.

__________________
capjak is offline  
 
Reply With Quote Quick reply to this message
Old 02-11-2010, 01:53 AM   #7
Philjoe5
HMEM_LIFETIMESUPPORTER.png
 
Philjoe5's Avatar
 
Join Date: Jul 2007
Location: Southeastern, PA
Posts: 1,718
Liked 325 Times on 269 Posts
Likes Given: 52

Default Re: Team Build - I'll try a different approach.....

Here's a link to a model engine built by a group of students:

http://npmccabe.tripod.com/45engine.htm

Cheers,
Phil

__________________

Beware those who are often wrong, but never uncertain - B. Parker

Philjoe5 is offline  
 
Reply With Quote Quick reply to this message
Old 02-11-2010, 02:51 AM   #8
kf2qd
 
kf2qd's Avatar
 
Join Date: Apr 2008
Posts: 415
Liked 25 Times on 30 Posts
Likes Given: 1

Default Re: Team Build - I'll try a different approach.....

I uploaded some plans a while back for a .60 2-stroke model airplane type engine built out of 2 inch blocks of aluminum, a cast iron sleeve and a steel crankshaft. It was designed for a lab project for a machine tool practice lab I taught to green-horns while I myself was also a student. They could be completed in about 45 hours of lab time. (as one -offs, not a production problem) Most of the work was done in a 4 jaw chuck on a lathe, with some (or all) work on the crankcase done on the mill. (actually I made a fixture to hold the crankcase cube on the rotary table and machined some of them entirely on the mill) The lab had 10 lathes and 2 Bridgeports.



__________________

KF2QD, South Texas
HF MiniMill, HF 7x10
Hardinge UM, Enco 12x36

kf2qd is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
european team build? pcw Team Builds 33 09-12-2012 11:12 PM
Team Build No.5A JorgensenSteam Team Builds 4 03-08-2011 01:45 AM
TB3 - IC engine team build Brass_Machine Team Builds 66 07-07-2008 01:16 AM
TB2 - Next Team Build Brass_Machine Team Builds 0 04-26-2008 04:48 PM
Team build Brass_Machine Team Builds 185 04-06-2008 06:32 PM




- Top - Member List